In January 2003, a woman's body was found in a field in Tomball, near Houston, Texas. The sledgehammer used to kill her was found nearby. An autopsy determined that the woman had died of blunt force trauma and she was identified as Sandra Rochelle Williams, age 34. DNA evidence recovered from her body provided a DNA profile of her murderer. However, there was no match to anyone in the DNA database.

Leads went nowhere and the case languished until November, 2010, when Tomball police got a call. Joel Guadalupe Sanchez, 33, was arrested for burglary, DUI and entering the US illegally. His DNA was entered into the DNA Database and his profile matched the DNA found on Williams body. The match was confirmed by a second test.

"There was no question once the second one came back," said Captain Ricky Doerre of the Tomball Police Department. Tomball police say that Sanchez denies knowing Williams, but also say there are witnesses who will testify that Sanchez was looking for her just before her murder, accusing her of trying to steal his truck.

Joel Guadalupe Sanchez, 33, has been charged with murder and is currently incarcerated on a previous conviction.